package com.lxp.project.system.service.impl;

import com.lxp.common.constant.HttpStatus;
import com.lxp.common.constant.UserConstants;
import com.lxp.common.core.page.TableDataInfo;
import com.lxp.common.exception.ServiceException;
import com.lxp.common.utils.DictUtils;
import com.lxp.common.utils.StringUtils;
import com.lxp.project.system.domain.SysDictData;
import com.lxp.project.system.domain.SysDictType;
import com.lxp.project.system.mapper.SysDictDataMapper;
import com.lxp.project.system.mapper.SysDictTypeMapper;
import com.lxp.project.system.service.ISysDictDataService;
import com.lxp.project.system.service.ISysDictTypeService;
import com.mybatisflex.core.paginate.Page;
import com.mybatisflex.core.query.QueryWrapper;
import com.mybatisflex.spring.service.impl.ServiceImpl;
import jakarta.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 字典 业务层处理
 *
 * @author lxp
 */
@Service
public class SysDictTypeServiceImpl extends ServiceImpl<SysDictTypeMapper, SysDictType> implements ISysDictTypeService {
    @Autowired
    private SysDictDataMapper dictDataMapper;
    @Autowired
    private ISysDictDataService dictDataService;

    /**
     * 项目启动时，初始化字典到缓存
     */
    @PostConstruct
    public void init() {
        loadingDictCache();
    }

    /**
     * 根据条件分页查询字典类型
     *
     * @param dictType 字典类型信息
     * @return 字典类型集合信息
     */
    @Override
    public List<SysDictType> selectDictTypeList(SysDictType dictType) {
        QueryWrapper lqw = new QueryWrapper();
        if (StringUtils.isNotBlank(dictType.getDictType())) {
            lqw.like(SysDictType::getDictType, dictType.getDictType());
        }
        if (StringUtils.isNotBlank(dictType.getDictName())) {
            lqw.like(SysDictType::getDictName, dictType.getDictName());
        }
        if (StringUtils.isNotBlank(dictType.getStatus())) {
            lqw.eq(SysDictType::getStatus, dictType.getStatus());
        }
        if (dictType.getBeginTime() != null) {
            lqw.ge(SysDictType::getCreateTime, dictType.getBeginTime());
        }
        if (dictType.getEndTime() != null) {
            lqw.le(SysDictType::getCreateTime, dictType.getEndTime());
        }
        return this.list(lqw);
    }

    /**
     * 根据字典类型查询字典数据
     *
     * @param dictType 字典类型
     * @return 字典数据集合信息
     */
    @Override
    public List<SysDictData> selectDictDataByType(String dictType) {
        List<SysDictData> dictDatas = DictUtils.getDictCache(dictType);
        if (StringUtils.isNotEmpty(dictDatas)) {
            return dictDatas;
        }
        dictDatas = dictDataService.selectDictDataByType(dictType);
        if (StringUtils.isNotEmpty(dictDatas)) {
            DictUtils.setDictCache(dictType, dictDatas);
            return dictDatas;
        }
        return null;
    }

    /**
     * 根据字典类型查询信息
     *
     * @param dictType 字典类型
     * @return 字典类型
     */
    @Override
    public SysDictType selectDictTypeByType(String dictType) {
        QueryWrapper lqw = new QueryWrapper();
        lqw.eq(SysDictType::getDictType, dictType);
        return mapper.selectOneByQuery(lqw);
    }

    /**
     * 批量删除字典类型信息
     *
     * @param dictIds 需要删除的字典ID
     */
    @Override
    public void deleteDictTypeByIds(Long[] dictIds) {
        for (Long dictId : dictIds) {
            SysDictType dictType = getById(dictId);
            if (dictDataService.countDictDataByType(dictType.getDictType()) > 0) {
                throw new ServiceException(String.format("%1$s已分配,不能删除", dictType.getDictName()));
            }
            mapper.deleteById(dictId);
            DictUtils.removeDictCache(dictType.getDictType());
        }
    }

    /**
     * 加载字典缓存数据
     */
    @Override
    public void loadingDictCache() {
        SysDictData dictData = new SysDictData();
        dictData.setStatus("0");
        Map<String, List<SysDictData>> dictDataMap = dictDataService.selectDictDataList(dictData).stream().collect(Collectors.groupingBy(SysDictData::getDictType));
        for (Map.Entry<String, List<SysDictData>> entry : dictDataMap.entrySet()) {
            DictUtils.setDictCache(entry.getKey(), entry.getValue().stream().sorted(Comparator.comparing(SysDictData::getDictSort)).collect(Collectors.toList()));
        }
    }

    /**
     * 清空字典缓存数据
     */
    @Override
    public void clearDictCache() {
        DictUtils.clearDictCache();
    }

    /**
     * 重置字典缓存数据
     */
    @Override
    public void resetDictCache() {
        clearDictCache();
        loadingDictCache();
    }

    /**
     * 新增保存字典类型信息
     *
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    public int insertDictType(SysDictType dict) {
        int row = mapper.insert(dict);
        if (row > 0) {
            DictUtils.setDictCache(dict.getDictType(), null);
        }
        return row;
    }

    /**
     * 修改保存字典类型信息
     *
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    @Transactional
    public int updateDictType(SysDictType dict) {
        SysDictType oldDict = mapper.selectOneById(dict.getDictId());
        dictDataService.updateDictDataType(oldDict.getDictType(), dict.getDictType());
        int row = mapper.update(dict);
        if (row > 0) {
            List<SysDictData> dictDatas = dictDataService.selectDictDataByType(dict.getDictType());
            DictUtils.setDictCache(dict.getDictType(), dictDatas);
        }
        return row;
    }

    /**
     * 校验字典类型称是否唯一
     *
     * @param dict 字典类型
     * @return 结果
     */
    @Override
    public boolean checkDictTypeUnique(SysDictType dict) {
        long dictId = StringUtils.isNull(dict.getDictId()) ? -1L : dict.getDictId();
        SysDictType dictType = selectDictTypeByType(dict.getDictType());
        if (StringUtils.isNotNull(dictType) && dictType.getDictId() != dictId) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    @Override
    public TableDataInfo selectDictTypePage(SysDictType dictType, TableDataInfo info) {
        QueryWrapper lqw = new QueryWrapper();
        if (StringUtils.isNotBlank(dictType.getDictType())) {
            lqw.like(SysDictType::getDictType, dictType.getDictType());
        }
        if (StringUtils.isNotBlank(dictType.getDictName())) {
            lqw.like(SysDictType::getDictName, dictType.getDictName());
        }
        if (StringUtils.isNotBlank(dictType.getStatus())) {
            lqw.eq(SysDictType::getStatus, dictType.getStatus());
        }
        if (dictType.getBeginTime() != null) {
            lqw.ge(SysDictType::getCreateTime, dictType.getBeginTime());
        }
        if (dictType.getEndTime() != null) {
            lqw.le(SysDictType::getCreateTime, dictType.getEndTime());
        }
        Page<SysDictType> page = this.page(new Page<>(info.getPageNum(), info.getPageSize()), lqw);
        info.setCode(HttpStatus.SUCCESS);
        info.setMsg("查询完成");
        info.setTotal(page.getTotalRow());
        info.setRows(page.getRecords());
        return info;
    }
}
